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Search: Posts Made By: high-tech
Forum: Troubleshooting TVs and Video Sources 09-15-2020, 08:42 PM
Replies: 10
Views: 120
Posted By high-tech
Re: Samsung UN55F7050AFXZA ver. TD01 power cycling

I have voltage on +L2 + L3 +R2 +R3 but when I put my volt meter to any of the 2s and 3s plus and minus I dont get the voltage... If I go from chassis with my negative probe and put my positive probe...
Forum: Troubleshooting TVs and Video Sources 09-15-2020, 08:33 PM
Replies: 10
Views: 120
Posted By high-tech
Re: Samsung UN55F7050AFXZA ver. TD01 power cycling

no the middle two circuits L2 & L3 and R2 & R3 wont light up but when I remove the screen and put my led tester on those 4 circuits they light up with an external LED tester...
Forum: Troubleshooting TVs and Video Sources 09-15-2020, 06:36 PM
Replies: 10
Views: 120
Posted By high-tech
Re: Samsung UN55F7050AFXZA ver. TD01 power cycling

Well I checked the t-con board for shorts and didn't find any... I also powered up and checked the voltage at the main fuse on the t-con board and it goes up to 12.48 volts in between power cycles...
Forum: Troubleshooting TVs and Video Sources 09-15-2020, 06:01 PM
Replies: 10
Views: 120
Posted By high-tech
Re: Samsung UN55F7050AFXZA ver. TD01 power cycling

it still does it with both screen cables unplugged.
Forum: Troubleshooting TVs and Video Sources 09-15-2020, 05:04 PM
Replies: 10
Views: 120
Posted By high-tech
Forum: Troubleshooting TVs and Video Sources 09-15-2020, 03:39 PM
Replies: 10
Views: 120
Posted By high-tech
Samsung UN55F7050AFXZA ver. TD01 power cycling

Hello everybody, I could use some help on this one... It's got me guessing...
I took pictures of all the boards and the pin out of the connector on the power supply that goes to the main board... I...
Forum: Troubleshooting TVs and Video Sources 09-06-2020, 07:01 PM
Replies: 1
Views: 91
Posted By high-tech
Re: LG 75UK6570PUB BUSWL0R Lights up no picture

I found the problem with the missing 12volts, right below the LVDS cable that goes to the T-con board Q1101 and a little SMD resistor are fried and the board is burnt and the foil pattern for the...
Forum: Troubleshooting TVs and Video Sources 09-06-2020, 06:33 PM
Replies: 1
Views: 91
Posted By high-tech
LG 75UK6570PUB BUSWL0R Lights up no picture

Hello Everybody, I got this tv from a friend. It only lasted a little over a year and its been sitting since Jan of 2020...

I poked around a little bit, tested the voltages at the power supply I...
Forum: Troubleshooting TVs and Video Sources 08-24-2020, 02:37 PM
Replies: 2
Views: 107
Posted By high-tech
What LED Strips are in a Panel

Hello Everybody, is there any way to find out what led strips are in a panel by referring to the panel numbers or model numbers? taking these tv's apart twice is getting old...
Forum: Troubleshooting TVs and Video Sources 08-14-2020, 09:29 AM
Replies: 2
Views: 142
Posted By high-tech
UN55KU6300FXZA LED strip removal

Hello Everybody, I cant get this LED strip to release from the distribution board so I can replace a burnt out LED... I dont want to break it, I tried squeezing the white plastic and that didn't work...
Forum: Troubleshooting TVs and Video Sources 07-27-2020, 07:33 AM
Replies: 2
Views: 214
Posted By high-tech
Re: VIZIO E50-C1 Backlight Driver circuit

Hi budm, I took that picture of the led strips when I first installed the replacement led strips. The second led strip from the top on the left was slightly dimmer than the rest... When I took the...
Forum: Troubleshooting TVs and Video Sources 07-26-2020, 10:34 PM
Replies: 2
Views: 214
Posted By high-tech
VIZIO E50-C1 Backlight Driver circuit

Hello Everybody, I have a good one. I got this TV a couple weeks ago and it had about 80% of the LED strips burnt out, So I ordered a replacement set of strips and installed them. This tv's backlight...
Forum: Troubleshooting TVs and Video Sources 07-21-2020, 06:00 PM
Replies: 8
Views: 176
Posted By high-tech
Re: Samsung UN55KU6300FXZA Version CJ05 Black Screen W/BL On

I've been gone for most of the afternoon, we are getting ready for some serious boat racing... When I get in later this evening I'll get on this, thanks for your replies, you guys are so helpful. I...
Forum: Troubleshooting TVs and Video Sources 07-21-2020, 10:17 AM
Replies: 8
Views: 176
Posted By high-tech
Re: Samsung UN55KU6300FXZA Version CJ05 Black Screen W/BL On

I need ideas On these double row connectors, what can I use to probe beside the wires in the backside of where the wires go into the connectors? I need to be able to sample bottom row of pins while...
Forum: Troubleshooting TVs and Video Sources 07-21-2020, 10:05 AM
Replies: 8
Views: 176
Posted By high-tech
Re: Samsung UN55KU6300FXZA Version CJ05 Black Screen W/BL On

I can't do anything All I get is a backlit screen... No picture no sound
Forum: Troubleshooting TVs and Video Sources 07-21-2020, 09:31 AM
Replies: 8
Views: 176
Posted By high-tech
Samsung UN55KU6300FXZA Version CJ05 Black Screen W/BL On

Hello Everybody, and good morning!
got this TV last night, I plugged it in and the backlight comes on. It won't turn off, no response pressing the power button other than a brief single flash of the...
Forum: Troubleshooting TVs and Video Sources 07-06-2020, 12:05 AM
Replies: 0
Views: 170
Posted By high-tech
Vizio M550NV

Hello Everybody, I know there are several other threads on this TV, and most of them are TSOP48 replacements :spank: I'm almost positive mine is as well. I've found 2 ads on ebay, nothing on...
Forum: Troubleshooting TVs and Video Sources 07-05-2020, 07:40 PM
Replies: 4
Views: 253
Posted By high-tech
Re: Vizio 55" M550SL No volume up or down

I just called to see if I could get this tv and apparently I was to late, thanks so much for being here, this is a great place to gain knowledge. I'm addicted to this stuff, I can't get enough... If...
Forum: Troubleshooting TVs and Video Sources 07-04-2020, 08:29 PM
Replies: 4
Views: 253
Posted By high-tech
Vizio 55" M550SL No volume up or down

Hello, and how is everybody doing? This Vizio's volume controls don't work on the tv and the remote... I don't yet have this tv, its waiting to be picked up... I'm wondering if this could be firmware...
Forum: Troubleshooting TVs and Video Sources 07-04-2020, 07:52 PM
Replies: 6
Views: 247
Posted By high-tech
Re: Samsung UN65J6200AFXZA No backlight

Its like the harness going into the tv isn't making it all the wat to the led array
Forum: Troubleshooting TVs and Video Sources 07-04-2020, 07:51 PM
Replies: 6
Views: 247
Posted By high-tech
Re: Samsung UN65J6200AFXZA No backlight

I Get nothing back on D1- and D2- the red probe on D1- and black probe on chassis ground and the same for D2- both zero volts
Forum: Troubleshooting TVs and Video Sources 07-04-2020, 07:36 AM
Replies: 6
Views: 247
Posted By high-tech
Re: Samsung UN65J6200AFXZA No backlight

Ok, I tested the 4 wires D1+ and D2+. With the TV turned on the both had 330 volts, red probe on the D1+ and D2+
and black probe on chassis ground. So looking like I'm going to take the panel out...
Forum: Troubleshooting TVs and Video Sources 07-04-2020, 12:03 AM
Replies: 6
Views: 247
Posted By high-tech
Samsung UN65J6200AFXZA No backlight

hi everybody, I could sure use some help on this one. when I turn this tv on the power supply turns on, PFC puts out roughly 400 volts on the two main caps, cp806 and cp807. I sampled the voltage at...
Forum: Troubleshooting TVs and Video Sources 04-02-2016, 05:06 PM
Replies: 2
Views: 772
Posted By high-tech
Forum: Troubleshooting TVs and Video Sources 04-02-2016, 04:40 PM
Replies: 2
Views: 772
Posted By high-tech
LG Plasma 50PC5D-UL random colored pixilation

I got this tv from friends and it would power cycle on and off... I took it apart and it was so full of dust the fan wouldn't run so the tv shuts down. I cleaned it all out now the tv stays on but I...
Showing results 1 to 25 of 122

 
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